Shuttle-motion for looms.



J. A. GENDRON.

SHUTTLE MOTION FOR LOOMS. APPLICATION FILED DEC. 20. l9l5.

1,21 1,569. Patented Jan. 9,1917.

2 SHEETSSHEET I.

J. A; GENDRON.

SHUTTLE MOTION FOR Looms. APLlCATION FILED DEC. 20, 1915- 121 1,569, Patented Jan. 9,1917.

2 SHEETS-SHEET 2.

JOSEPH A. GENDRON, F NASI-IUA. NEW HAMPSHIRE.

SI-IUTTLE-MOTION FOE LOOMS.

retrace.

Specification of Letters Patent.

Patented Jan. 9, 1917.

Application filed December 20, 1915. Serial No. 67,848.

Y 0 all whom it may concern Be it known that I, JOSEPH A. GENDRON, a citizen of the United States, residing at Nashua, in the county of Hillsboro and State of New Hampshire, have invented new and useful Improvements in Shuttle- Motions for Looms, of which the following is a specification.

My present invention pertains to positive shuttle motion for looms, and is designed more particularly as an improvement upon the organized mechanism constituting the subjects of my Patents 928,440 of July 20, 1909 and 1,036,483 of August 20, 1912.

One of the objects of this invention is to provide on the lay of a loom, carriages on which shuttle-holders are mounted, combined with means for moving the carriages inwardly through long slow strokes with a view to affording time for the warp to open wide enough to receive the shuttle without interiterence, and means constructed and arranged, during the completion of said slow strokes of the carriages, to suddenly move the shuttle-holders inwardly so as to assure one holder taking the shuttle from the other.

Another object of the invention is the pro vision of simple and reliable means for controlling the connection between the shuttle holders and the shuttle; said means being ad vanta 'eous in that the holders approach quite closely to each other, and in that the shuttle moved inwardly in one holder is re ceived and securely fastened in the other holder, with the result that there is' no liability of the shuttle being allowed to fly out of position.

Other advantageous characteristics of my improved mechanism will be fully understood from the following description and claims when the same are read in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a detail plan of a portion of a loom, equipped with my improvement. Fig. 2 is a side elevation of the same. Fig. 3 is a transverse section on line 33 of Fig. 2. Fig. a is a longitudinal section on line l d f Fig. 1.. Fig. 5 is a similar view with the parts in different positions. Fig. 6 is an e evation showing the forward side of the shuttle-holder. Fig. 7 is a. section on line 7-7 of Fig. 6. Fig. 8 is a detail view on an nlarged scale, showing the switch members.

lfiig. 9 is a detail elevation showing the spring in the upper channel of the bar on the carriage. Figs. 10 andll are detail views showing the detachable connection of the sections comprised in the link 11.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The loom frame, one end of the front portion of which is shown and numbered 1, may be and preferably is of the construction disclosed in my aforesaid patents.

2 is the breast beam, and 3 the lay, supported by swords (not shown).

4: is the operating crank shaft, 5 one of the cranks on said shaft, connected through a pin 8 and a link 9 with the lay for the purpose of osc llating the lay toward and from the breast beam. 1 have elected to show but one end portion of the lay with my improved mechanism thereon together with the means for actuating said mechanism incidental to the movements of the lay toward and from the breast'beam. It is to he understood, however, that the said mechanism and the means for actuating the same are duplicated at the opposite end of the lay and loom in the same general manner as shown in Fig. 6 of my Patent 1,036,483, swim.

Comprised in my novel mechanism is a carriage 10 which is mounted on the lay and to which is connected a link 11 for the purpose of moving it inwardly and outwardly endwise of the lay. The inner end of the link 11 isconnected to a lever 12 which is pivoted at 13 to a holder 1% which swings about a horizontal pivot held in a bracket 15, fastened to a. cross-bar 16 of the loom frame. The lever 12 has an arm 17 extending inwardly and provided with a cam slot 18. into the latter extends a pin or roller 19 carried by the lay. This slot extends throughout the greater part ofits length in a direction transverse to the movement of the lay. Consequently the latter causes the lever 12 to oscillate about its pivot 13 and through link 11 to reciprocate carriage 10. The slot 18 has a. portion 18 near its end which eX- tends in the line of movement of pin 19 when the lay is nearest to; the breast beam. Because of this provision the carriage 10 is caused to dwell at the extremity of its outward movement with the result that ample time is afiorded for weft replenishing while the carriage is in the position stated and the shuttle is held solidly in the shuttle-holder as hereinafter described.

Fixed to and extending inwardly from the carriage is a horizontal arm 20, disposed longitudinally of the lay, and guided and movable on said arm is a shuttle-holder 21, designed to receive and carry the shuttle 22.

Journaled in the carriage 10 is a transverse shaft 23 to which is fixed a spur gear 24 and an arm 25, the latter being connected through a link 26 with the shuttle-holder 21 to reciprocate the latter on the arm 20 when the shaft 23 is rotated as hereinafter described.

For the purpose of cushioning the carriage 10 when it reaches the end of its inward traverse with a view to avoiding injury to the mechanism and at the same time assisting the starting of the subsequent out-ward traverse of the carriage, I provide between the carriage 10 and the end of the lay a connection comprising a bar 30 pivoted at 31 to carriage 10 and arranged to swing vertically, a bar 32 pivoted at 33 to the end of the lay and also arranged to swing vertically', a pivotal connection 3st between the lapped ends of said bars 30 and 32, and a plate 35 fixed to and arranged below the forward portion of the bar 32 and having a weighted portion 36 at the rear end and also having a forwardly extending and dished resilient portion 37 disposed below the lower end of the bar 30. As the carriage l0 approaches the end of its inward traverse the lower portion of the bar 30 exerts pressure against the resilient portion 3'7 of plate 35 with the result that the completion of the inward movement of the carriage 10 is cushioned. Then at the commencement of the return or outward movement of the carriage 10, the pressure exerted by the resilient plate portion 37 against the bar 30 tends to give an outward impulse to the carriage l0 and afterward the weighted portion 36 of the plate 35 tends to assist the bars 30 and 32 in assuming a pendent position as the carriage 10 is moved outwardly.

J ournaled in the carriage 10 back of the shaft 23 is a transverse shaft 40. Fixed on this shaft tO is a spur gear 41, intermeshed with the gear 24, and also fixed on said shaft 40 is a bell crank lever having arms 42 and 43.

Carried at the side of the lay remote from the breast beam 2 is a retaining guide 50, arranged longitudinally of the lay and having spaced vertical walls and end walls, and arranged midway of the length of said guide is a fixed tappet 51, of inverted V-shape. It will also be observed that on an upright 52 rising from the middle of the outer wall of the guide a horizontal shoe 53 is fixed;

said shoe extending longitudinally of the lay in opposite directions from theupright 52 and being arranged such a distance above the apex of the tappet 51 that the arms of the bell-crank lever are snugly held or crowded while passing between said apex and shoe. On the inward movement of the carriage 10, the arm 43 moves between the apex of the tappet 51 and the shoe 53, and

consequently the shaft 40 remains idle.

Nhen, however, the arm 42 brings up against and moves over the tappet 51, the shaft 23 will be rotated in the direction indicated by the arrow, and the shuttle holder will be moved quickly inward on its complementary arm 20. Incidental to the outward movement of the carriage 10 the arm 43 of the bell-crank lever engages and moves over the tappet 51, thereby moving the shut tle holder outwardly on its arm 20.

It will be gathered from the foregoing that during the first portion of the inward movement of the carriage 10, the shuttle holder Wlll remain idle on the carriage, while during the last portion of said movement of the carriage the shuttle holder will be.

quickly advanced or moved inwardly on the arm 20; also, that during the first portion of the outward traverse of carriage 10, the shuttle holder will be quickly retracted on the arm 20, after which said shuttle holder will move with the carriage 10.

At its side remote from the breast beam 2, the arm 20 is provided with a longitudinal-central rib (30, the forward or inner end of which is tapered, as indicated by 61. Above and below said rib are channels 62 and 63, while in the outer end portion of the upper channel 62 is a flat inclined spring 6% for a purpose hereinafter set forth. Arranged in a recess 6? formed in said side of the arm 20 beyond the inner end of the rib G0 are switch members and 71 which are pivoted at 72 to the arm 20. The said mem bers 70 and 71 are provided in their arms adjacent to the inner end of the rib 60 with ways 7 3 and 74, respectively, and the other and comparatively long arms of the memhere are arranged at opposite sides of the end portions of a U-shaped spring 75, secured by a button 76 to the arm 20.

The shuttle holder 21 is hollow, and is provided at one side with a bowed spring 80, designed to hold the shuttle 22 straight in the holder. At its other side the holder 21 is flanged, as indicated by 81, so as to straddle and slide on the arm 20 and be confined to rectilinear movements. In the outer end portion of the wall of the holder adjacent to the arm 20 is a shuttle lock which com- 125 prises a longitudinal rock-shaft 82, a beveled finger 83 fixed to said shaft and positioned to play in the opening 84: in the holder wall and move into and out of the recess 85 in the shuttle 22, a lateral arm 86 fixed to the rock shaft 82 and free to swing vertically in the outer end portion of the holder 21, and a runner 87 pivotally mounted on said arm 86 and adapted to move in the channels of the arm 20 and through the ways in the switch members carried by said arm 20. It is to be understood here that the shuttle 22 is provided with two of the recesses 85, one near each end of the shuttle, and one for the engagement of the lock in the shuttle holder shown and the other for the engagement of the lock in the complementary shuttle holder (not shown) at the opposite end of the lay.

The practical operation of the mechanism is as follows: After delivering the shuttle 22 to the other shuttle-holder (not shown) the shuttle-holder 21 is moved outwardly on the arm 20. During this movement the runner 87 of the shuttle lock moves outwardly in the lower channel 63 of arm 20. On the subsequent inward movement of holder 21, the runner 87 moves inwardly in said lower channel Then during the completion of said inward movement of the holder, the runner 87 moves through the way 73 of the switch member and assumes a position above the long arm of the switch member 71. At this time the holder 21 receives the shuttle 22, and it will be noted that because of the runner 87 being above the spring-backed arm of the member 71, the beveled finger 83 on the rock shaft 82 will be pressed back in opening Sat of the holder 21 by the tapered end of the shuttle and will then snap quickly and strongly into the recess 85 of the shuttle so as to securely fasten the latter in the holder. On the subsequent movement of the holder 21 with the shuttle locked therein, the runner 87 presses the short arm of switch member 70 downwardly and out of the way and passes the same and then continues its outward movement in the upper channel 62. Then with the shuttle still locked in holder, the runner 87 is moved out wardly in channel 62 and through way in switch member 71 to a position under the long arm of the switch member 70, with the result that the finger 83 on rock shaft 82 is swung out of recess 85 in the shuttle and the shuttle is unlocked for delivery to the shuttle holder complementary to the shuttleholder shown at the middle of the lay. On the following outward movement of shuttleholder 21, the runner 87 presses the short arm of switch member 71 upwardly and passes same and then continues its outward movement in the lower channel 63 of arm 20, following which the operation described is repeated.

It will be gathered from the foregoing that the shuttle is locked in the shuttle holder and unlocked from the shuttle holder while the latter is adjacent to the inner end of the arm 20 which renders the automatic mechanism reliable in operation. It will also be gathered that said mechanism is sim ple and strong and requires no extraneous assistance for the locking of the shuttle.

It is sometimes desirable to unlock the shuttle from holder 21 when said holder is at the end of its outward movement. I therefore provide on the carriage 10 a vertical plunger 95, normally supported by a spring 96. I also provide in the shuttle holder 21 above the runner 87,'a recess 97 for the passage of said plunger 95. Now when the holder 21 is in its outer position and said recess 97 is under plunger 95, the runner S7 is above the spring 6 t. Conse quently when the plunger 95 is depressed the runner 87 will be moved downwardly against the action of spring 64, and the finger of the shuttle lock will be disengaged from the shuttle, permitting removal of the latter from the holder. When pressure is removed from the plunger 95, the spring 64 moves the runner 87 back into alinement with the upper channel 62 of the arm 20, ready for its inward movement in said channel.

The carriage 10 is provided at 100 with a spring backed buffer, designed to cushion the shuttle holder at the completion of the outward movement thereof.

The link 11, hereinbefore referred to for transmitting motion from the cam 12 to the carriage 10, comprises two sections 11 and 11 said sections being pivotally and detachably connected together as shown in Figs. 10 and 11. The detachable connection of the sections is resorted to in order that when desired the carriage 10 may be disconnected from its complementary cam 12, this so that the carriage when in its outer position may be caused to dwell or remain idle during the oscillation of the lay. In effecting said detachable connection the section ll is provided with a bifurcated end 12*, bridged by a cross pin 13 The section l1 is slotted at 1 and provided at its inner end with a notch 15 to receive the pin 13*. Pivoted at 16 to the side of section 11 is an arm l7 having a hook 18 at its forward end and a bifurcation 19 in its rear end. Guided on the section 11 is a spring-pressed latch 20- having a lateral portion 21 disposed in said slot 14 and adapted to be seated in the bifurcation 19 of the arm 17 hen the arm l7 is en aged and held by the latch, the hook on said arm serves to prevent removal of the pin l3 on section l1 from the notch in section 11 hen however, the latch is retracted and the arm 17 is released and swung out of alinement with the section 11, the pin 13 may be readily re moved from the notch of section 11 and may as readily be placed therein. In this way the sections 11 and ll may be disconnected, and then when it is desired for the carriage 10 to be again moved by the lay, the connection between the sections may be readily reestablished.

Having described my invention, what I claim and desire to secure by Letters-Patent, is:

1. In a shuttle motion for looms, the combination of a lay, a carriage movable in- .vardly and outwardly on the lay, a shuttleholder movable with the carriage during the first portion of the inward movement and the last portion of the outward movement, respectively, of the carriage, and movable on and independently of the carriage during the completion of the inward movement and the first portion of the outward movement, respectively, of the carriage, means for moving the carriage on the lay, means movable on the carriage and connected with the shuttle holder, and means on the lay arranged to engage said movable means on the carriage during the completion of the inward movement and the firstpo1'- tion of the outward movement of the carriage to quickly move the shuttle-holder inwardly and outwardly independently of the carriage.

2. In a shuttle-motion for looms, the combination of a lay, a carriage movable inwardly and outwardly on the lay, a shuttleholder movable with the carriage during the first portion of the inward movement and the last portion of the outward movement, respectively, oi the carriage, and movable on and independently of the carriage druing the completion of the inward movement and the first portion of the outward movement, respectively, of the carriage, means for moving the carriage, on the lay, means movable on the carriage and connected with the shuttle holder, means on the lay arranged to engage said movable means on the carriage during the completion of the inward movement and the first portion of the outward movement of the carriage to move the shuttle-holder inwardly and outwardly independently of the carriage, a shuttle lock in the shuttle holder, provided with a runner, a shuttle having means for the engagement of said lock, and means for cooperating with said runner of the lock and locking and unlocking the shuttle while the shuttle holder is adjacent to its innermost position.

3. In a shuttle motion for looms, the combination oi a suitable support, a shuttleholder movable inwardly and outwardly on the support,means for so moving the shuttleholder, a shuttle-lock in the shuttle-holder, provided with a runner, a shuttle having means for the engagement of said lock, and means on the su port -tor cooperating with said runner of the lock and locking and unlocking the shuttle while the shuttle-holder is adjacent to its innermost position.

4. In a shuttle motion for looms, the combinat1on of a lay, a carnage movable 1nwardly and outwardly on the lay, a shuttle holder mounted on the carr age and movable with and on or independently of the carriage in the direction of the length of the lay, means for moving the carriage on the lay, a bell-crank lever on the carriage, a connection between said lever and the shuttle-holder for moving said holder on and independently of the carriage, and means on the lay for cooperating with one arm of said lever to move the shuttle holder inwardly and for cooperating with the other arm of the lever to move the shuttle-holder outwardly.

5. In a shuttle motion for looms, the combination of a lay, a carriage movable inwardly and outwardly on the lay, a shuttleholder mounted on the carriage and movable with and on or independently of the carriage in the direction of the length of the lay, means for moving the carriage on the lay, a shaft journaled in the carriage and having a gear and a bell-crank lever fixed thereon, a second shaft journaled in the carriage and having a gear and an arm fixed thereon; said gear being intermeshed with the first-named gear, a connection between said arm and the shuttle-holder for moving the latter, and means on the lay for 00- operating with one arm of the bell-crank lever to move the shuttle-holder inwardly and for cooperating with the other arm of the lever to move the shuttle-holder outwardly.

6. In a shuttle motion for looms, the com bination oi a suitable support having a longitudinal rib and channels above and below said rib, and also having pivoted'and springpressed switch members arranged inwardly beyond the rib and having ways in their outer arms, and a shuttle-holder movable inwardly and outwardly on the support and having a shuttle-lock comprising a runner movable in said channels of the support and through said ways of the switch members.

7. In a shuttle motion for looms, the combination of a suitable support having a longitudinal rib and channels above and below said rib, and also having pivoted and springpressed switch members arranged inwardly beyond the rib and having ways in their inner arms, a shuttle holder movable inwardly and outwardly on the support and having a shuttle-lock comprising a runner movable in said channels of the support and through said ways of the switch members, and a spring arranged in the outer portion of one channel and designed when the shuttle is in its outer position to rest at the opposite side of said runner with reference to an aperture in the shuttle-holder pro- \"ided for the introduction of means for pressing the runner in a direction to unlock the shuttle from the holder.

S. In a shuttle motion for looms, the com bination of a suitable support having a longitudinal rib and channels above and below said rib, and also having pivoted and spring-pressed switch members arranged inwardly beyond the rib and having ways in their outer arms, a shuttle holder movable inwardly and outwardly on the support and having a shuttle-lock comprising a runner movable in said channels of the support and through said ways of the switch members, and a. spring arranged in the outer portion of one channel and designed when the shuttle is in the outer position to rest at the opposite side of said runner with reference to an aperture in the shuttle-holder provided for the introduction of means for pressing the runner in a direction to unlock the shuttle from the holder, and means on the support for said purpose.

I). In a shuttle motion for looms, the com bination of a suitable support, a shuttleholder movable inwardly and outwardly on the support, cooperating means on the support and holder for looking a shuttle to the holder while the holder is at the end of its inward traverse and during the subsequent outward and inward traverses of the holder and for unlocking the'shuttle from the holder at the end of the inward traverse, and manually-operated means on the support for cooperating with said means on the holder for unlocking the shuttle from the holder while the holder is at the outer end of its outward traverse.

10. In a shuttle motion for looms, the combination of a lay, a carriage movable inwardly and outwardly on the lay, means for so moving the carriage, and a connection between the end of the lay and the carriage, comprising bars pivotally connected together and to the lay and the carriage, and a plate fixed to and arranged below one bar and having a weighted rear portion and a forwardly-extending resilient portion disposed below the adjacent end of the other bar. 11. In a shuttle motion for looms, the combination of a lay, a carriage movable inwardly and outwardly on the lay, means for so moving the carriage, and a connection between the end of the lay and the carriage comprising members connected together and resilient means on one member and bearing against the other member and adapted to cushion the inward traverse of the carriage and accelerate the outward traverse thereof.

12. In a shuttle motion for looms, the combination or a lay, a carriage movable imvardly and outwardly on the lay, means for so moving the carriage, and a combined cushion and accelerator interposed between the lay and the carriage.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

JOSEPH A. GENDRON. Vitnesses JULIA M. KEOY, WILLIAM C. SMALL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

